2026 NECO Computer Studies Questions and Answers (Essay & Objectives OBJ)

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COMPUTER HARDWARE AND GSM REPAIRS
01-10: CBECDBADED
11-20: AEDEBAAEED
21-30: CEEEDAAEEB
31-40: ECEBCCADCA
41-50: ADDDCEAABA

COMPLETED

NECO COMPUTER HARDWARE AND GSM REPAIRS ESSAY

NUMBER ONE

(1ai)
A medium in telecommunication is the channel, path, or means through which information, voice, data, or signals are transmitted from the sender to the receiver.

(1aii)
(PICK ANY TWO)
(i) Twisted pair cable.
(ii) Coaxial cable.
(iii) Fibre optic cable.
(iv) Radio waves.
(v) Microwave.
(vi) Satellite communication.

(1b)
(i) NCC (Nigerian Communications Commission): Regulates and supervises the telecommunications industry in Nigeria.
(ii) NITEL (Nigerian Telecommunications Limited): Provides telecommunication services such as telephone and data communication.
(iii) NBC (National Broadcasting Commission): Regulates and licenses radio and television broadcasting stations in Nigeria.
(iv) NITDA (National Information Technology Development Agency): Promotes and regulates the development and use of Information Technology (IT) in Nigeria.
(v) NIPOST (Nigerian Postal Service): Provides postal and mail delivery services across Nigeria.

(1c)
A BTS is a radio communication equipment in a GSM network that transmits and receives voice and data signals between mobile phones and the Base Station Controller (BSC). It contains antennas and radio transmitters/receivers and provides network coverage within a specific geographical area called a cell.

(1d)
(i) Weather Satellite: Used for weather forecasting, monitoring cloud movements, rainfall, storms, and other atmospheric conditions.
(ii) Communication Satellite: Used for transmitting television, radio, telephone, internet, and other communication signals over long distances.
(iii) Navigation Satellite: Used for determining accurate location, navigation, mapping, and positioning through systems such as GPS.

NECO COMPUTER HARDWARE AND GSM REPAIRS

NUMBER TWO

(2a)
Current: Current is the rate of flow of electric charge through a conductor. It is measured in amperes (A).

WHILE

Voltage: Voltage is the electrical potential difference between two points in a circuit. It is measured in volts (V).

WHILE

Resistance: Resistance is the opposition offered by a material or conductor to the flow of electric current. It is measured in ohms (Ω).

(2bi)
Yellow = 4
Violet = 7
Orange = ×1,000
Gold = ±5% tolerance
Resistance = 47 × 1,000 = 47,000 Ω = 47 kΩ ±5%

(2bi)
(i) Resistor
(ii) Capacitor
(iii) Diode
(iv) NPN Transistor

(2bii)
(i) Resistor: Used to limit or control the flow of electric current in a circuit.
(ii) Capacitor: Used to store electrical charge or for filtering in electronic circuits.
(iii) Diode: Used to allow current to flow in one direction only (rectification).
(iv) Transistor: Used as an amplifier or an electronic switch in circuits.

(2ci)
An amplifier is an electronic device or circuit that increases the strength (amplitude) of a weak electrical signal without changing its original form

(2cii)
(i) Public Address (PA) systems.
(ii) Radio and television receivers.

NECO COMPUTER HARDWARE AND GSM REPAIRS

NUMBER THREE

(3a)
A computer is an electronic device that accepts data as input, processes it according to a set of instructions, stores it, and produces meaningful information as output.

(3bi)
Software is a collection of programs, instructions, and related data that directs a computer on how to perform specific tasks.

(3bii)
(PICK ANY TWO)
(i) Operating system software.
(ii) Utility software.
(iii) Application software.
(iv) Programming software.
(v) Language translators (Compiler, Interpreter, Assembler).
(vi) Device driver software.

(3c)
(i) Monitor.
(ii) System unit.
(iii) Keyboard.
(iv) Mouse.
(v) Printer.
(vi) Scanner.
(vii) Speakers.
(viii) Microphone.
(ix) Hard disk drive (HDD) / Solid State Drive (SSD).
(x) Uninterruptible Power Supply (UPS).

(3d)
(PICK ANY FOUR)
(i) E-mail communication.
(ii) Web browsing and information retrieval.
(iii) Online education (e-learning).
(iv) Electronic commerce (e-commerce).
(v) Social networking and instant messaging.
(vi) Video conferencing and online meetings.

NECO COMPUTER HARDWARE AND GSM REPAIRS

NUMBER FIVE

(5ai)
A user interface (UI) is the means through which a user interacts and communicates with a computer, mobile phone, or any electronic device to perform tasks.

(5aii)
(i) Graphical User Interface (GUI).
(ii) Command Line Interface (CLI).
(iii) Menu-Driven Interface.

(5bi)
Mobile phone accessories are additional devices or equipment used with a mobile phone to improve its functionality, protection, convenience, or performance.

(5bii)
(PICK ANY TWO)
(i) Charger: Used to recharge the phone battery.
(ii) Earphones/Headset: Used for listening to audio and making hands-free calls.
(iii) Power Bank: Used to charge the phone when there is no electricity.
(iv) Phone Case/Cover: Protects the phone from scratches and damage.
(v) Memory Card (MicroSD): Used to increase the phone’s storage capacity.
(vi) USB Data Cable: Used for charging the phone and transferring data between devices.

(5c)
(PICK ANY FIVE)
(i) Wi-Fi.
(ii) Bluetooth.
(iii) Display.
(iv) Sound.
(v) Security.
(vi) Date and Time.

(5d)
=Mobile Phone Hardware=
(PICK ANY TWO)
(i) Screen (Display).
(ii) Battery.
(iii) Camera.
(iv) Speaker.
(v) Microphone.
(vi) SIM card slot.

=Mobile Phone Software=
(PICK ANY TWO)
(i) Android Operating System.
(ii) WhatsApp.
(iii) Google Chrome.
(iv) Gmail.
(v) Facebook.
(vi) YouTube.

NECO Computer Studies 2026: Exam Structure, Marking Scheme, Grading System and Areas of Concentration

If you are preparing for the 2026 NECO Computer Studies examination, understanding the exam format, marking scheme, grading system, and key topics can significantly improve your performance. This guide highlights what to expect and the areas you should focus on while revising.

NECO Computer Studies 2026 Exam Structure

The NECO Computer Studies examination is divided into three papers for school candidates.

1. NECO Computer Studies 2026 Questions and Answers Essay 
2. NECO Computer Studies 2026 Questions and Answers Objectives (Obj)
3. NECO Computer Studies 2026 Questions and Answers Practical 

Paper	Description	Duration	Marks
Paper I	Objective (Multiple Choice)	1 Hour	40 Marks
Paper II	Essay/Theory	2 Hours	60 Marks
Paper III	Practical Test	2 Hours	100 Marks

Note: Candidates are expected to answer both objective and essay questions, while the practical paper assesses their ability to use computer systems and software applications effectively.

NECO Computer Studies 2026 Marking Scheme

Your final performance is based on all papers combined.

Component	Marks
Objective (Paper I)	40
Essay (Paper II)	60
Practical (Paper III)	100

Examiners Look Out For

• Correct definitions and explanations.
• Proper use of computer terminology.
• Well-labelled diagrams where required.
• Correct practical procedures.
• Logical steps in programming and problem-solving questions.
• Accurate calculations for binary numbers and data representation.

NECO Computer Studies 2026 Grading System

NECO grades candidates using the following grading scale.

Grade	Interpretation
A1	Excellent
B2	Very Good
B3	Good
C4	Credit
C5	Credit
C6	Credit
D7	Pass
E8	Pass
F9	Fail

A minimum of C6 is generally accepted as a credit pass for admission into many Nigerian tertiary institutions where Computer Studies is required or accepted.

NECO Computer Studies 2026 Areas of Concentration

Candidates should pay close attention to the following topics.

1. Introduction to Computers

• History of computers
• Characteristics of computers
• Generations of computers
• Types of computers
• Classification of computers

2. Computer Hardware

• Input devices
• Output devices
• Storage devices
• Processing unit (CPU)
• Motherboard
• Memory (RAM and ROM)

3. Computer Software

• System software
• Application software
• Utility software
• Operating systems

4. Data Representation

• Binary numbers
• Decimal numbers
• Octal numbers
• Hexadecimal numbers
• Number conversions
• Binary arithmetic

5. Computer Programming

• Algorithms
• Flowcharts
• Programming languages
• Translators (Compiler, Interpreter and Assembler)
• Debugging

6. Operating System

• Functions of an operating system
• File management
• Process management
• Booting

7. Information Processing

• Data processing cycle
• Methods of processing
• Information systems

8. Computer Ethics

• Privacy
• Cybercrime
• Intellectual property
• Copyright
• Software piracy

9. Computer Networks

• LAN
• MAN
• WAN
• Internet
• Intranet
• Network devices

10. Internet and Communication Technology

• Email
• Search engines
• Web browsers
• Social media
• Cloud computing
• Video conferencing

11. Database Management

• Database concepts
• Tables
• Records
• Fields
• Primary keys

12. Spreadsheet Applications

• Microsoft Excel
• Formulae
• Functions
• Charts
• Cell referencing

13. Word Processing

• Microsoft Word
• Formatting
• Tables
• Mail Merge
• Printing

14. Presentation Software

• Microsoft PowerPoint
• Slides
• Animation
• Transitions

15. Computer Maintenance

• Safety precautions
• Virus protection
• Antivirus software
• Backup procedures
• Troubleshooting

16. Practical Computer Operations

• Keyboard shortcuts
• File management
• Creating documents
• Spreadsheet calculations
• Internet browsing
• Printing documents

Frequently Tested Topics

The following areas appear regularly in NECO Computer Studies examinations:

• Computer hardware and software
• Data representation
• Number system conversion
• Flowcharts and algorithms
• Programming concepts
• Computer networks
• Internet services
• Computer ethics
• Database management
• Microsoft Word
• Microsoft Excel
• PowerPoint
• Operating systems
• Computer maintenance
• ICT applications

Tips to Score A1 in NECO Computer Studies

• Study the official NECO Computer Studies syllabus.
• Practise with past questions regularly.
• Master binary number conversions and data representation.
• Learn common Microsoft Office applications through hands-on practice.
• Understand networking and internet concepts.
• Revise programming basics, algorithms, and flowcharts.
• Practise practical computer operations before the examination.
• Manage your time effectively during both theory and practical papers.

Final Thoughts

The 2026 NECO Computer Studies examination tests both theoretical knowledge and practical computer skills. Candidates who understand the exam structure, focus on the major topics, practise practical tasks, and solve past questions consistently stand a better chance of earning excellent grades. Start your preparation early and revise the high-priority areas to maximize your performance on examination day.

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